Re: Arisian Ellipsoidal Polychromatic Lens w/MultiJewel Array!

"Keith F. Lynch" <kfl@[EMAIL PROTECTED]
> wrote
> mike weber <fair****tfan@[EMAIL PROTECTED]
> wrote:
>> Behind the LEDs in that design, i think - hearing aid batteries.
>
> How do those differ from watch batteries?
>
> I've noticed that anything intended for medical use costs enormously
> more than something equivalent for non-medical use.

Some years ago Dear Abby answered a letter wondering why watch batteries 
last years, where as hearing aid batteries last weeks. She asked some 
expert who claimed that heating aids use significantly more power.

Karl Johanson